`histogram` for chart

Creates a new table with a histogram based on the column name passed in.

Signature

> histogram {flags} (column-name) (frequency-column-name)

Flags

--percentage-type, -t {string}: percentage calculate method, can be 'normalize' or 'relative', in 'normalize', defaults to be 'normalize'

Parameters

column-name: Column name to calc frequency, no need to provide if input is a list.
frequency-column-name: Histogram's frequency column, default to be frequency column output.

Input/output types:

input	output
list<any>	table

Examples

Compute a histogram of file types

> ls | histogram type

Compute a histogram for the types of files, with frequency column named freq

> ls | histogram type freq

Compute a histogram for a list of numbers

> [1 2 1] | histogram
╭────┬────────┬────────┬───────────┬─────────────┬────────────────────────────────────────────────────────────────────╮
│  # │ value  │ count  │ quantile  │ percentage  │                             frequency                              │
├────┼────────┼────────┼───────────┼─────────────┼────────────────────────────────────────────────────────────────────┤
│  0 │      1 │      2 │      0.67 │ 66.67%      │ ****************************************************************** │
│  1 │      2 │      1 │      0.33 │ 33.33%      │ *********************************                                  │
╰────┴────────┴────────┴───────────┴─────────────┴────────────────────────────────────────────────────────────────────╯

Compute a histogram for a list of numbers, and percentage is based on the maximum value